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CVE-2022-4939— WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation

Quick assessment

Affected
wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin WCFM Marketplace 存在安全漏洞，该漏洞源于缺少对各种 AJAX 操作的检查。

CVSS 9.8 · Critical EPSS 2.10% · P81

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2022-4939

Vulnerability Information
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Vulnerability Title
WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation
Source: CVE Program / CVE List V5
Vulnerability Description
THe WCFM Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 2.10.0, due to a missing capability check on the wp_ajax_nopriv_wcfm_ajax_controller AJAX action that controls membership settings. This makes it possible for unauthenticated attackers to modify the membership registration form in a way that allows them to set the role for registration to that of any user including administrators. Once configured, the attacker can then register as an administrator.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Vulnerability Title
WordPress plugin WCFM Marketplace 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
WordPress和WordPress plugin都是WordPress基金会的产品。WordPress是一套使用PHP语言开发的博客平台。该平台支持在PHP和MySQL的服务器上架设个人博客网站。WordPress plugin是一个应用插件。 WordPress plugin WCFM Marketplace 存在安全漏洞，该漏洞源于缺少对各种 AJAX 操作的检查。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace * ~ 2.10.0 -

II. Public POCs for CVE-2022-4939

# POC Description Source Link Shenlong Link
1 None https://github.com/BaconCriCRi/PoC-CVE-2022-4939- POC Details
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III. Intelligence Information for CVE-2022-4939

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Patches & Fixes for CVE-2022-4939 (1)

Vendor Advisories for CVE-2022-4939 (1)

Same Patch Batch · wclovers · 2023-04-05 · 7 CVEs total

CVE-2022-4935 8.8 HIGH WCFM Marketplace <= 3.4.11 - Missing Authorization
CVE-2022-4940 7.3 HIGH WCFM Membership <= 2.10.0 - Missing Authorization
CVE-2022-4936 6.3 MEDIUM WCFM Marketplace <= 3.4.12 - Cross-Site Request Forgery
CVE-2022-4937 6.3 MEDIUM WordPress plugin Frontend Manager 安全漏洞
CVE-2022-4938 6.3 MEDIUM WCFM Frontend Manager <= 6.5.13 - Cross-Site Request Forgery
CVE-2022-4941 6.3 MEDIUM WCFM Membership <= 2.9.10 - Cross-Site Request Forgery

IV. Related Vulnerabilities

Same product: WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
Same vendor: wclovers
Same weakness: CWE-862

V. Comments for CVE-2022-4939

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